Classification of supernovae and their remnants

Details Classification of supernovae and their remnants Classification of supernovae and their remnants

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...327..156v&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 1, 1988, p. 156-163.

Astronomy and Astrophysics

Astrophysics

56

B Stars, Crab Nebula, H Ii Regions, Magellanic Clouds, O Stars, Supernova Remnants, High Frequencies, Hydrogen, Polarization (Waves), Pulsars, Stellar Evolution, Synchrotron Radiation

Scientific paper

Observations of the composition of SNRs, the distributions of SNRs relative to H II regions, and the SN rates in external galaxies are compared and discussed. The observations are all consistent with the assumption that SNe of type Ib had O-type progenitors, whereas SNe of type II result from the evolution of early B-type stars. Since the most massive evolving stars will lose their outer envelopes before they explode, oxygen-rich SNRs should be produced by SN Ib, whereas lower mass evolving stars, which retain some hydrogen in their outer envelopes, become plerionic SNRs. The progenitors of SN II have masses between 8 and 18 solar masses, whereas stars with masses greater than 18 solar masses become SN Ib.

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